You cannot be worried about not be able to re-raise on the shorties push because he may not push. I think we need to almost ignore the short stack and play against the important villain raising us. Take away his odds to call and hit a set on the flop by betting at least 1/8 of their stack - I suggest 1/5th. So $50. Which also happens to be potting it.

I say ignore the shorty because if we pot it here, the shorty will be more inclined to play with us by seeing a flop, rather than investing his whole stack preflop. Remember, shorty did not push preflop after the re-raise, so he can't be THAT confident about his hand... so let's try to lure him along with a smaller than his stack bet. Besides, if he calls another $33, he'll get it all in on the flop.

Also, you don't want to bet too little because now you give shorty a chance to fold the flop and the major villain a chance to flop a set for cheap against an obvious AA/KK.